From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
To: Zhang Rui <rui.zhang@intel.com>, "Kenneth R. Crudup" <kenny@panix.com>
Cc: linux-pm@lists.linux-foundation.org, rafael.j.wysocki@intel.com,
linux-pm@vger.kernel.org, "Liang, Kan" <kan.liang@intel.com>
Subject: Re: Why do I sometimes "lose" the "psys" RAPL counter?
Date: Mon, 30 Mar 2020 21:55:51 -0700 [thread overview]
Message-ID: <78d89a67d7fdda477fe406d5401a50b892d2ee81.camel@linux.intel.com> (raw)
In-Reply-To: <a72bd97c2d0a3d1b9438198db79bfecaaf2918b3.camel@intel.com>
On Tue, 2020-03-31 at 10:49 +0800, Zhang Rui wrote:
> On Mon, 2020-03-30 at 10:40 -0700, Kenneth R. Crudup wrote:
> > On Mon, 30 Mar 2020, Srinivas Pandruvada wrote:
> >
> > > I could reproduce this. This fails because the Psys MSR read 0.
>
> Do you mean MSR_PLATFORM_POWER_LIMIT?
MSR_PLATFORM_ENERGY_COUNTER (0x64d)
Thanks
Srinivas
> It is not 0 according to previous emails.
>
> > > Also
> > > the counter values are not correct as the incremental values are
> > > less
> > > than package energy counter values.
> >
> > OK, so the very night I'd asked this question, Dell put out a BIOS
> > update
> > (BIOS 1.3.1 03/02/2020) that seems to have fixed this issue; I have
> > not
> > had a missing "psys" domain since updating. Srinivas, can you
> > update
> > the
> > XPS 7390 you have to this BIOS version and verify this is fixed?
> >
> Good to know.
>
> thanks,
> rui
>
>
next prev parent reply other threads:[~2020-03-31 4:55 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <alpine.DEB.2.21.2003252212220.2971@xps-7390>
2020-03-26 5:30 ` Why do I sometimes "lose" the "psys" RAPL counter? Kenneth R. Crudup
2020-03-26 8:13 ` Rafael J. Wysocki
2020-03-26 15:23 ` Srinivas Pandruvada
[not found] ` <691eb7a6efd7a954295f234a70f548fd0c81e2f8.camel@intel.com>
[not found] ` <alpine.DEB.2.21.2003252353370.2971@xps-7390>
[not found] ` <7e1562ce93b83a685aa54dd2ae5a5b36c5737cb6.camel@intel.com>
[not found] ` <alpine.DEB.2.21.2003260225200.2971@xps-7390>
2020-03-26 9:36 ` Kenneth R. Crudup
2020-03-26 9:54 ` Kenneth R. Crudup
[not found] ` <c9a24dfbc765c9c19d87094e5b2044f33431e501.camel@intel.com>
2020-03-26 9:38 ` Kenneth R. Crudup
2020-03-26 9:55 ` Kenneth R. Crudup
2020-03-26 10:15 ` Kenneth R. Crudup
2020-03-30 9:55 ` Zhang Rui
2020-03-30 15:51 ` Srinivas Pandruvada
2020-03-30 17:40 ` Kenneth R. Crudup
2020-03-31 2:49 ` Zhang Rui
2020-03-31 4:55 ` Srinivas Pandruvada [this message]
[not found] <20200326181641.291505803E3@linux.intel.com>
2020-03-26 19:36 ` Srinivas Pandruvada
[not found] ` <alpine.DEB.2.21.2003261303530.3213@xps-7390>
2020-03-27 16:57 ` Srinivas Pandruvada
2020-03-27 17:09 ` Kenneth R. Crudup
2020-03-27 19:19 ` Srinivas Pandruvada
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